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高考物理越来越注重对考生能力的考查,试题新颖且有深度,考生往往觉得它们都是“生面孔”。事实上,那些看起来陌生的题目都有它们的源头,找到这些源头所在,将有助考生掌握未来命题的走向,也利于考生在临场时快速进人状态。来源一:在高考考点范围内的竞赛题物理竞赛题本身具有一定的难度,利于考查学生的综合分析能力,因此那些在高考考点范围内的竞赛题尤其容易得高考命题老师青睐,常常被改编之后作为高考物理的压轴题。例1:(1993年第10届全国物理竞赛决赛试题)如图所示,在竖直放置的两平行光滑长直导轨
College entrance examinations more and more emphasis on the ability to test the candidates new and in-depth questions, candidates often think they are “raw face ”. In fact, those seemingly unfamiliar topics have their source. Finding these sources will help candidates grasp the trend of future propositions, and also help the examinee to quickly enter the state at the scene. Source one: the contest within the entrance exam questions Physics contest itself has a certain degree of difficulty, which will help students examine the ability of comprehensive analysis, so those in the entrance examination questions within the contest is particularly vulnerable to college entrance examination proposition teacher favor, often after being adapted As a finale of college entrance examination questions. Example 1: (1993 10th National Physics Competition Finals Test) As shown in the figure, two parallel smooth long straight rails